Skip to content

How many grams of sugar is an unhealthy amount?

4 min read

The American Heart Association (AHA) recommends that most women consume no more than 25 grams of added sugar per day and men no more than 36 grams. Answering the question of how many grams of sugar is an unhealthy amount is crucial for preventing a range of health issues, as most people consume far more than this recommended daily limit.

Quick Summary

This article explores the difference between added and natural sugars, detailing how to determine your daily limit, the health consequences of excess sugar, and practical strategies to reduce your intake.

Key Points

  • Daily Limits: The American Heart Association recommends limiting added sugar to 25g for women and 36g for men.

  • Added vs. Natural Sugars: Added sugars are those put into processed foods and offer no nutritional benefit, unlike the natural sugars found in fruits.

  • Health Risks: High sugar intake is linked to weight gain, heart disease, type 2 diabetes, fatty liver disease, and poor dental health.

  • Hidden Sugar: Many common processed foods, condiments, and beverages contain high amounts of hidden added sugars.

  • Reduce Intake: Cutting sugary drinks and choosing whole foods over processed alternatives are effective strategies to decrease sugar consumption.

In This Article

Understanding Sugar: Added vs. Natural

Not all sugar is created equal. The most important distinction to understand when determining an unhealthy amount is between naturally occurring sugars and added sugars. Natural sugars are found in whole foods like fruits and dairy, which also contain fiber, vitamins, and minerals. Fiber, in particular, slows digestion, preventing the rapid blood sugar spikes associated with added sugars.

Added sugars, on the other hand, are sweeteners and syrups put into processed foods and drinks during manufacturing. Common examples include high-fructose corn syrup, sucrose, and dextrose. These provide calories without any nutritional benefit and are a major contributor to overconsumption. A single 12-ounce can of soda can contain as much as 39 grams of sugar, instantly exceeding the daily recommendation for both men and women.

Official Guidelines: Setting the Boundary

Determining exactly how many grams of sugar is an unhealthy amount depends on various factors, including age, gender, and overall health. However, global health organizations provide clear, evidence-based recommendations. The most cited guidelines focus on limiting added sugars to help mitigate health risks.

  • American Heart Association (AHA): For women, the limit is no more than 25 grams (6 teaspoons) of added sugar per day. For men, it's no more than 36 grams (9 teaspoons).
  • World Health Organization (WHO): Recommends reducing free sugar intake (including added sugars and sugars from honey, syrups, and fruit juices) to less than 10% of total daily energy intake. Ideally, a reduction to below 5% offers even greater health benefits.
  • National Health Service (NHS) (UK): Suggests that adults should consume no more than 30 grams of free sugars daily.

Health Risks of Exceeding the Unhealthy Sugar Limit

Consuming too many grams of sugar can have a cascade of negative effects on your body. These are not limited to weight gain but include a wide array of systemic problems.

Increased Risk of Weight Gain and Obesity

Sugar-sweetened beverages are a primary driver of weight gain. The liquid calories don't provide a sense of fullness, leading people to consume more total calories. Excess sugar intake often leads to calories being stored as fat, increasing the risk of obesity, which is a precursor to other chronic diseases.

Heart Disease

High sugar consumption is independently linked to an increased risk of dying from heart disease, even for individuals at a healthy weight. Excessive added sugar can elevate blood pressure and raise harmful cholesterol and triglyceride levels, which are major risk factors for heart attack and stroke.

Type 2 Diabetes

High intake of sugary drinks is strongly associated with an increased risk of developing type 2 diabetes. The body's constant high demand for insulin to process sugar can lead to insulin resistance, a key factor in the onset of diabetes.

Non-Alcoholic Fatty Liver Disease

Fructose, a type of sugar, is processed by the liver. Consuming excessive amounts can cause fat to build up in the liver, leading to non-alcoholic fatty liver disease (NAFLD). In early stages, this is reversible with diet changes, but it can progress to more serious liver damage.

Poor Dental Health

It is well-known that sugar feeds harmful bacteria in the mouth, which produce acids that erode tooth enamel, leading to cavities and decay.

Comparison of Added Sugar in Common Foods

Knowing how many grams of sugar is an unhealthy amount is only useful if you can apply it to your daily diet. Here is a comparison of the added sugar content in some common processed food items to help you understand how quickly you can reach or exceed the recommended daily limit.

Food Item (Common Serving Size) Approximate Added Sugar (grams) Percentage of Women's Daily Limit (25g) Percentage of Men's Daily Limit (36g)
12 oz (355ml) Can of Regular Soda 39g 156% 108%
1.5 oz (44g) Milk Chocolate Bar 22g 88% 61%
1 cup (245g) Flavored Yogurt 26g 104% 72%
1 serving (30g) Sugary Cereal 12g 48% 33%
16 oz (473ml) Sweetened Coffee 25g 100% 69%

Practical Steps to Reduce Your Sugar Intake

To avoid an unhealthy amount of sugar, focus on a diet rich in whole, unprocessed foods. Here are practical strategies:

  • Read Nutrition Labels Carefully: Always check the "Added Sugars" line on the nutrition facts label. Look for multiple sugar ingredients (e.g., corn syrup, fructose) under different names.
  • Cut Back on Sugary Drinks: This is one of the most effective ways to reduce sugar intake. Replace sodas, fruit juices, and sweetened teas with water, unsweetened tea, or sparkling water with a splash of citrus.
  • Opt for Whole Fruits: When you have a sweet craving, choose whole fruits over fruit juices or dried fruits. The fiber in whole fruit helps regulate blood sugar.
  • Prepare Meals at Home: Cooking at home gives you full control over the ingredients. Many pre-made sauces, marinades, and restaurant meals contain surprisingly high amounts of sugar.
  • Reduce Sugar in Coffee and Tea: Gradually cut down on the amount of sugar you add to your hot drinks. After a few weeks, your taste buds will adjust to the less sweet flavor.
  • Be Mindful of Hidden Sugars: Check the labels of condiments (ketchup, BBQ sauce), salad dressings, and 'healthy' processed foods, as they often contain significant added sugar.

Conclusion

The question of how many grams of sugar is an unhealthy amount has a clear answer based on health guidelines: for added sugar, most adults should aim for less than 25-36 grams daily. Exceeding this limit regularly increases the risk of serious health issues, including heart disease, type 2 diabetes, and obesity. By understanding the difference between added and natural sugars, reading labels diligently, and making mindful food choices, you can significantly reduce your consumption and improve your long-term health. It's not about complete avoidance but rather about control and conscious consumption.

For more comprehensive dietary information, consider exploring resources from the American Heart Association regarding healthy eating habits.

Frequently Asked Questions

For added sugars, the American Heart Association recommends no more than 25 grams for women and 36 grams for men per day. The World Health Organization suggests keeping free sugar intake under 5-10% of total daily energy.

Free sugars include all added sugars, plus the sugars naturally present in honey, syrups, and fruit juices. They do not include the natural sugars found in whole fruits and milk.

No, natural sugars in whole fruits are not considered unhealthy. The fiber in whole fruits slows digestion and sugar absorption, preventing rapid blood sugar spikes. The problem lies with added and free sugars.

Read the nutrition facts label and check the line for 'Added Sugars.' You can also look at the ingredients list for terms like corn syrup, sucrose, dextrose, and other syrups.

Yes, sugary drinks like soda and sweetened coffee are a major source of added sugar. A single 12-ounce can of soda can easily exceed the recommended daily limit.

Consuming too much added sugar, particularly from sugary drinks, significantly increases the risk of developing type 2 diabetes by contributing to insulin resistance over time.

Yes, moderation is key. A small, occasional treat with added sugar is unlikely to harm your health. The concern is chronic, excessive consumption that pushes you far above the recommended daily limits.

References

  1. 1
  2. 2
  3. 3

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.